Aircraft delta fin



FIG. 1 is a rear, top perspective drawing of an aircraft delta fin showing our new design and its environment.

FIG. 2 is a detailed rear, top perspective view thereof;

FIG. 3 is a right side perspective view thereof;

FIG. 4 is a left side perspective view thereof;

FIG. 5 is a back plan view thereof; and,

FIG. 6 is a bottom plan view of thereof.

The portions of the drawings shown in broken lines indicate surrounding structure and environment that forms no part of the claimed design. 

CLAIM The ornamental design for an aircraft delta fin, as shown and described. 